Antenna system and mobile terminal

Abstract

The invention relates to the field of communication, and discloses an antenna system and a mobile terminal. The antenna system comprises a first antenna radiation part, a second antenna radiation partand a circuit board, wherein the circuit board is provided with a first radio frequency switch, a second radio frequency switch, a first matching circuit, a second matching circuit, a feeding point,a first grounding point and a second grounding point, the feeding point is electrically connected with the first antenna radiation part so as to achieve feeding of the first antenna radiation part, one end of the first radio frequency switch is electrically connected to the first grounding point, the other end of the first radio frequency switch is connected to the first antenna radiation part byconnecting the first matching circuit so as to achieve grounding of the first antenna radiation part, one end of the second radio frequency switch is electrically connected to the second grounding point, the other end of the second radio frequency switch is connected to the second antenna radiation part by connecting the second matching circuit so as to achieve grounding of the second antenna radiation part, and the second antenna radiation part and the first antenna radiation part are arranged at intervals to achieve electromagnetic coupling. The antenna system and the mobile terminal, provided by the invention, have wide frequency band and high performance and are simultaneously low in implement cost.

Description

technical field [0001] The invention relates to the communication field, in particular to an antenna system and a mobile terminal. Background technique [0002] With the rapid development of communication technology, 5G network, as the fifth-generation mobile communication network, has a theoretical maximum transmission speed of tens of Gb per second, which is hundreds of times faster than the transmission speed of 4G network. High-quality movies can be downloaded within 1 second. [0003] However, the inventors of the present invention have found that since 5G is not popularized at present, the antenna systems in existing mobile terminals such as mobile phones can only work in 2G, 3G, and 4G frequency bands. To replace the antenna system for the 5G frequency band, the existing antenna system cannot be recycled and reused, which will undoubtedly increase the cost. Contents of the invention [0004] The purpose of the embodiment of the present invention is to provide an a...

AI Technical Summary

Problems solved by technology

[0003] However, the inventors of the present invention found that since 5G is not popularized at present, the antenna systems in existing mobile terminals such as mobile phones can only work in 2G, 3G, and 4G frequency bands. If they want to support 5G frequency bands, they need to be newly prepared Replacing the antenna system for the 5G frequency band, the existing antenna system cannot be recycled and reused, which will undoubtedly increase the cost

Images